| 摘要 |
<p>A needle (1) with a protective cap (2), substantially cylindrical in shape, having an open end (9) and the opposite end tapered with a central hole (10) through which the needle (1) can emerge, the cap (2) having a diameter such that it can slide onto a cylindrical body (7 or 7bis, 7', 7'', 7'''), on which it is slided during use.</p> |
